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John Deere E100 Troubleshooting

The John Deere E100 lawn tractor was manufactured between 2018 and 2020. The components of John Deere E100 powerline system: a 30.5 cu.in (500 cc) Briggs and Stratton 31R977 Intek 4-cycle single cylinder OHV vertical shaft air-cooled gasoline engine and 5 variator range RT400 belt-driven continuously variable transmission with infinite forward and reverse gears.

The engine has a cylinder bore of 3.56" (91 mm), piston stroke of 3.06" (78 mm), and rated power of 17.5 hp (13 kW). Max travel speed (forward/reverse): 5.5 mph (8.8 kph) and 3.2 mph (5.1 kph).

The John Deere E100 is equipped with a manual steering system, cone clutch brakes, 15x6.00-6 front tires, and 20x8.00-8 rear tires. The wheel base is 49" (1240 mm). The tractor is compatible with a 42" mid-mount 2-blade mower deck with cutting height of 1.0-4.0" (25-102 mm), 13 cut positions, and mechanical lift system, 46" front blade, and 44" front-mount two-stage snow blower.

Engine Troubleshooting
Engine difficult to start or won't start
Gas tank is empty - Fill it up
Low-quality gasoline - Use correct fuel grade
Air in fuel system - Bleed fuel system
Spark plug wire connection are damaged - Inspect the spark plug wire connection, replace or repair
Defective spark plug - Spark plug need to be replaced
Dirty fuel filter - Install new filter
Safety contact for brake pedal defective - Install new part
Carburetor is dirty - Wash, clean and adjust
Engine has bad compression - Check cylinder block and change wear parts
Choke cable is unadjusted or damaged - Replace cable or adjust properly
Engine runs intermittently
Air intake grill is clogged - Need to wash or clean
Ignition failure - Inspect ignition system and change faulty parts
Throttle cable is faulty or stuck - Change or clean the cable
Air filter is blocked - Clean or change air filter
Fuel pump is clogged or faulty - Service or change fuel pump
Engine stalls after starting
Spark plug is damaged - Spark plug need to be replaced
Carburetor is clogged or faulty - Service or replace carburetor
Damaged ignition coil - Install a new ignition coil
Worn or loose valve springs - Change valve springs
Valves sticking - Valves need to be cleaned
Engine keeps overheating
Low engine oil level - Fill the crankcase with engine oil
Engine is overloaded - Reduce the load
Cooling fins are plugged - Clean and wash as required
Carburetor mixture is too lean - Use proper settings
Ignition timing is improper - Adjust ignition timing as required
Valve setting is improper - Adjust valves as required
Abnormal engine knocking or noise
Stale or low octane fuel - Use correct fuel
Engine overloaded - Load reducing required
Engine oil level low - Fill the crankcase with engine oil
Low idle speed setting is not correct - Correct the settings
Dirty or defective fuel pump - Clean or change fuel pump
Main bearings or crankshaft wear - Install new parts as as required
Improper valve clearance - Adjust to proper valve clearance
Cylinder bore or piston rings are damaged - Replace faulty parts
Engine power loss
Clogged or incorrectly adjusted carburetor - Adjust the carburetor correctly or clean it
Air filter is dirty - Clean or replace air filter
Dirty or defective fuel pump - Clean or replace fuel pump
Defective ignition system - Inspect ignition system and change faulty parts
Worn cylinder head gasket - Install new cylinder head gasket
Valves are stuck or burned - Change or clean valves
Damaged or worn push rod - Change push rod
Cylinder block components are damaged - Defective parts need to be replaced
High fuel consumption
Choke doesn't open well - Adjust or replace choke cable
Carburetor main jet is incorrectly adjusted - Adjust the carburetor main jet properly
Loose or faulty spark plug - Tighten or change the spark plug
Valves are stuck, burned, or worn - Clean or replace valves
Worn rings, piston, or sleeve - Replace defective parts as required
Valve clearance is not correct - Need to adjust valve clearance
High oil consumption
Defective seals or gaskets - Install new components
Damaged valve guides or valve stems - Valves must be replaced
Seized or wear piston rings - Change the piston rings as required
Scuffed cylinder liner or piston - Inspect liner and piston, fit new parts as necessary
Plugged breather hose or pipe - Clean or change

Automatic Transmission Troubleshooting
CVT transmission makes excessive noise
Speed control linkage is worn or unadjusted - Adjust or change linkage
Transmission is under excessive load - Reduce the load is required
Transmission fluid is dirty or fluid level is too low - Pour fresh fluid or add transmission fluid to proper level
Transmission components are damaged or worn - Check CVT transmission components and change if necessary
Difficult shifting
Rusty or worn shift linkage - Install a new gear linkage
Hydrostatic pump is worn or stuck - Repair or replace pump
Transmission shift control components are defective or misadjusted - Replace or adjust as required
Power is too low
Insufficient transmission oil - Need to add transmission oil
Defective or worn drive sheave - Change sheave
Shift linkage is damaged or unadjusted - Replace or adjust linkage
Defective or not adjusted speed control pedal linkage - Change or adjust linkage
Transmission leaking
Broken transmission gaskets or seals - Replace seals or gaskets
Leaking final drive shaft - Change shaft seals
Transmission housing is cracked - Housing needs to be replaced

Mower Deck Troubleshooting
Mower vibrates excessively
Worn or dirty mower drive pulley - Clean or change pulley
Loose or damaged drive belt - Adjust belt tension or replace belt
Mower blades are not balanced or warped - Change or balance blades
Blade mounting bolts are loose - Tighten it fast
Discharge chute is constantly plugged
Fast mowing speed - Select a slower speed
Long grass - Adjust mower to lower cutting height
Engine rpm is too low - Open choke fully
Mower deck set to low cutting - Use correct cutting height
Mower drive belt installation is improper - Install drive belt as required
Lawn mower leaving uncut grass
Discharge chute is plugged - Need to clean the mower deck
Blades are not sharp - Need to sharpen the blades
Worn or damaged blades - Replace the blades
Fast mowing speed - Operate at slower speed
Cutting height is too low - Use a higher cutting height
Full bagger - Clean bagger
Blades scalp the grass
Lawn is bumpy or not smooth - Lawn leveling required
Cutting level is too low - Use a higher cutting height
Fast mowing speed - Use a slower speed
Deck level is not correct - Deck should be adjusted correctly
Blades are bent or worn - Replace the blades
Tires are not properly inflated - Need to inflate tires
Uneven cutting
Incorrect tire pressure - Inflate tires correctly
Mower deck is not leveled properly - Level the deck correctly
Not sharp blades - Blades need to be sharpened
Bent or worn blades - Blades need to be replaced
Cutting deck is clogged - Clean mower deck as required
Deck housing is damaged - Repair or replace the deck
Loose or defective mower spindle - Install new spindle or repair it

Electrical Troubleshooting
Battery does not charge
Electrical wire connections are corroded or loose Tighten or clean electrical wiring connections
Battery terminal connectors are faulty - Terminal connectors should be replaced
Battery dead cell - Use a new battery
Starter cranks slow
Low battery capacity - Low battery charging, charge as required
Battery drains quickly - Service or change the battery
Corroded battery terminals or disconnected wires - Check cable connections and change or clean terminals
Starter is not working
Battery is low or faulty - Need to charge or replace the battery
Disconnected or improperly connected wiring harness - Inspect battery wiring harness and connect as required
Battery capacity is low - Battery is drained, recharge it
Incorrectly gapped or worn spark plug - Clean, gap or replace spark plug
Starter motor or solenoid is damaged - Change solenoid or repair starter




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